The superior whopper-baiting scrimshaw is an item that can be made with the Fletching skill at level 85 once all four scroll fragments of whopper-bating have been retrieved from the Player-owned port, using 10 ancient bones. It requires 80 fishing to be worn.

When equipped, it offers a 20% chance at increased experience while Fishing by hooking a larger-than-normal fish (which is not caught). When the effect activates, it will announce in your chatfeed, "You gain additional Fishing experience thanks to your scrimshaw,, even though the whopper got away". Fish that get away do not count towards a Daily Challenge. It does not work with the rock pools in Summer Beach Party. Fish that get away also do not count as the 100 wobbegong limit, but will give more experience.